Birther believers in Arizona will have to find another place to congregate later this month, after Tea Party organizers announced late last week that they were canceling an upcoming event due to a lack of ticket sales.

The event was set to be headlined by Maricopa County Sheriff Joe Arpaio and another member of his "Cold Case Posse," both of whom have been outspoken proponents of conspiracy theories about President Barack Obama's birth certificate being a forgery. 78-year-old singer Pat Boone, who was taped last year speaking out about Obama's alleged Kenyan birthplace, was also set to make an appearance. Rounding out the bill was Terrence Lakin, a former Army doctor who was dismissed from the service and sentenced to six months in a military prison after refusing to deploy to Afghanistan over his birther beliefs.